Leg support structure of computer desk capable of synchronous sliding movement

ABSTRACT

The present invention provides a leg support structure of a computer desk capable of synchronous sliding movement, comprising a stand, a leg pad, two L-shaped prop stand and two sliding collars. The stand is formed into an inverse U-shaped, and the leg pad is formed into a planar configuration. The leg pad comprises a lower pivot opening and an upper pivot opening formed on both sides of the leg pad, wherein the locations of the lower openings and the upper pivot openings are corresponding to positions of a lower pivot and two L-shaped prop stands. The lower pivot is positioned though the lower pivots openings of the leg pad in order to pivot to a support located at a center of the two arcing grooves. The L-shaped prop stands, the two sliding collars, the pulley and a slider are engaged in such that various elevation changes can be achieved.

FIELD OF TECHNOLOGY

This invention relates to a leg support structure of a computer deskcapable of synchronous sliding movement, particularly to one that may beoverturned and stretched along with the outward sliding movement of theslider for placement of a keyboard, to allow a user to place his/hershank in an easy manner.

BACKGROUND OF INVENTION

Most of the conventional OA furniture is not equipped with a part forsupporting user's feet, such that the user operating a computer needs totake an upright posture without providing support to various parts ofthe body, resulting in easy tiring. Though some conventional computerdesks are equipped with a part for supporting user's feet, such a partis usually provided at a lower position that does not provide sufficientsupport to the legs of the human body so as to result in anuncomfortable sitting posture.

This invention, accordingly, aims at overcoming the shortcomings foundat the foot support structure of the conventional computer desks.

SUMMARY OF INVENTION

It is an object of this invention to provide a leg support structure ofa computer desk capable of synchronous sliding movement, including: astand configured to an inverse-U shape, the stand being formed with anarcuate groove at each of mid-sections of two suspending portionsthereof; a leg pad configured to a planar configuration, having alateral side pivoted to a center of the two arcuate groove and anotherlateral side pivoted to a pulley by means of two sliding collars to rollin the arcuate grooves; the two sliding collars being each engaged overthe vertical sides of the two L-shaped prop stands, the sliding collarsbeing each joined to an understand of the stand by means the horizontalsides, and a slider at ends thereof for placement of a keyboard, wherebyoutward sliding movement of the slider upon experiencing an externalforce actuates the L-shaped prop stands to cause movement of the slidingcollars and to cause the pulley to slide downwards in the arcuategrooves, wherein the vertical sliding movement of the sliding collarsalong the L-shaped prop stands compensates for elevation changesresulted from inward sliding movement of the pulley in the arcuategrooves, subjecting the leg pad to be overturned and stretched alongwith the sliding movement of the slider to form a leg support structureallow easy use.

It is another object of this invention to provide a leg supportstructure of a computer desk capable of synchronous sliding movement,wherein the slider closely rests against an underside of the top of thestand in its retracted state, while the leg pad is normal to a frontside of the stand, so as to optimize the use of the space withoutoccupying unnecessary space.

It is another object of this invention to provide a leg supportstructure of a computer desk capable of synchronous sliding movement,where the structure is formed with plural retaining holes on a top ofthe stand, through which retaining holes bolts pass to be affixed to anunderside of the desktop. Or, the stand may be provided with racks atlower bottoms of opposing sides thereof, so as to be placed directlyunderneath the desktop. Accordingly, this invention allows numerousvariations in accordance with the operating surrounding.

The structures and characteristics of this invention can be realized byreferring to the appended drawings and explanations of the preferredembodiments.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is an exploded, perspective view of this invention.

FIG. 2 is an assembled, perspective view of this invention.

FIG. 3 is an assembled, partial cross-sectional view of this invention.

FIG. 4 is a schematic view illustrating a state where this invention isretracted while being assembled to a desktop.

FIG. 5 is a schematic view illustrating this invention in operation.

FIG. 6 illustrates the structure of an alternative embodiment of thisinvention.

FIG. 7 illustrates the structure of the alternative embodiment of thisinvention under the state of use.

DESCRIPTION OF PREFERRED EMBODIMENTS

FIG. 1 is an exploded, perspective view of this invention. FIG. 2 is anassembled, perspective view of this invention. FIG. 3 is an assembled,partial cross-sectional view of this invention. As clearly shown, thisinvention mainly includes: a stand 1, leg pads 2, L-shaped prop stands 3and sliding collars 4, wherein the stand 1 is configured to an inverse-Ushape, the stand 1 is formed with an arcuate groove 12 at each ofmid-sections of two suspending portions 11 thereof. The arcuate grooves12 are each formed at an end thereof (top) with a large through hole121. The stand 1 is further provided at a top thereof with pluralretaining holes 13. The leg pad 2 is configured to a planarconfiguration, and is formed with a lower pivot opening 21 and an upperpivot 22 at corresponding locations of a front and rear face thereof,through which pivot openings 21, 22 a lower pivot 22 may pass so as topivot to a support 231 located at a center of the two arcuate grooves12. The horizontal sides of the two L-shaped prop stands 3 are engagedto an underside of the top of the stand 1 by means of a retaining sleeve32 at midsections thereof. The horizontal sides of the two L-shaped propstands 3 are joined to a slider 31 at ends thereof for placement of akeyboard. The two sliding collars 4 are each engaged over the verticalsides of the two L-shaped prop stands 3. The sliding collars 4 are eachlaterally formed with a through hole 41 at outer sides thereof, throughwhich an upper pivot 411 passes to join to a pulley 42 (that is situatedin the arcuate grooves 12 through the large through hole 121), and thensubsequently pivots to the upper pivot opening 22 of the leg pad 2.

FIG. 4 is a schematic view illustrating a state where this invention isretracted while being assembled to a desktop. It is known from FIG. 5,that is a schematic view illustrating this invention in operation, thatthe stand 1 employs plural fasteners that pass through the retainingholes 13 so as to be affixed to an underside of the desktop 51 joined toa partition 5. When the slider 31 slides outwards upon experiencing anexternal force, the L-shaped prop stands 3 would cause movement of thesliding collars 4 and to cause the pulley 4 to slide outwards in thearcuate grooves 12 of the stand 1. At the same time, the sliding collar4 also slides downwards from the top of the vertical sides of theL-shaped prop stands to compensate for elevation changes resulted fromsliding movement of the pulley in the arcuate grooves. At this time, theleg pad is gradually overturned and stretched along with the slidingmovement of the slider 31 to form a leg support structure that allows auser to place his/her shank in an easy manner.

FIG. 6 illustrates the structure of an alternative embodiment of thisinvention. It is known from its state of use as shown in FIG. 7 that,the stand 1 is provided with plural racks 14 at lower bottoms ofopposing sides thereof, so as to be placed directly underneath thedesktop 51 without being joined to the underside of the desktop 51 toaccommodate different operating surrounding.

This invention is related to a novel creation that makes a breakthroughin the art. Aforementioned explanations, however, are directed to thedescription of preferred embodiments according to this invention.Various changes and implementations can be made by persons skilled inthe art without departing from the technical concept of this invention.Since this invention is not limited to the specific details described inconnection with the preferred embodiments, changes to certain featuresof the preferred embodiments without altering the overall basic functionof the invention are contemplated within the scope of the appendedclaims.

1. A leg support structure of a computer desk capable of synchronoussliding movement, comprising: a stand having an inverse U-shaped,wherein the stand comprises an arcing groove formed at each ofmidsection of two suspending portions thereof; a leg pad having a planarconfiguration, wherein the leg pad comprises a lower pivot opening andan upper pivot opening formed on each lateral side of the leg pad,positions of those lower openings are corresponding to location of alower pivot so that the lower pivot is positioned though the lowerpivots openings of the leg pad in order to pivot at a center part of thetwo arcing grooves; two L-shaped prop stands, each having a horizontalside and a vertical side, wherein the horizontal sides of the twoL-shaped prop stands are engaged to an underside of a top portion of thestand by a retaining sleeve located at midsections of the two suspendingportions, the horizontal sides are jointed to a slider at ends thereoffor a placement of a keyboard; and two sliding collars having outerportions, each engaged over the vertical sides of the two L-shaped propstands, wherein holes are formed at outer portions of the slidingcollars for locating an upper pivot to joint to a pulley and thensubsequently, the two sliding collars are pivoted to the upper pivotopening of the leg pad; whereby outward sliding movement of the sliderupon experiencing an external force actuates the L-shaped prop stands tocause movement of the sliding collars and to cause the pulley to slidedownwards in the arcing grooves, subjecting the leg pad to be overturnedand stretched.
 2. The leg support structure of a computer desk capableof synchronous sliding movement of claim 1, wherein the stand isprovided on a top thereof with plural retaining holes through whichplural fasteners pass to joint to an underside of desktop.
 3. The legsupport structure of a computer desk capable of synchronous slidingmovement of claim 1, wherein a plurality of flexible leg parts areformed at bottom portions of the two suspending portions of the stand sothat the leg supporting structure can be placed directly underneath adesktop without being attached or connected to undersides of thedesktop.